Home / 10,491.39-15,739.38-4,569.22

Finding the Fourth Proportional to 10,491.39, 15,739.38 and 4,569.22

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Solution

The fourth proportional to 10,491.39, 15,739.38 and 4,569.22 is: 6,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.39 : 15,739.38 = 4,569.22 : x
  2. Step 2: Convert to fraction form
    10,491.39/15,739.38 = 4,569.22/x
  3. Step 3: Cross multiply
    10,491.39x = 15,739.38 × 4,569.22
  4. Step 4: Simplify right side
    10,491.39x = 71,916,689.88
  5. Step 5: Solve for x
    x = 71,916,689.88/10,491.39
  6. Step 6: Final answer
    x = 6,854.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.